Revise IAllocator and IMapper to reduce IPC and to support gralloc0
devices.
Specifically, IAllocator is trimmed down to have essentially only
allocate(BufferDescriptor descriptor, uint32_t count)
generates (Error error,
uint32_t stride,
vec<handle> buffers);
The ability to allocate buffers with shared backing store is
removed. ProducerUsage and ConsumerUsage are moved to the
graphics.common package and are merged and renamed to BufferUsage.
BufferUsage's bits follow gralloc0.
IMapper gains
typedef vec<uint32_t> BufferDescriptor;
createDescriptor(BufferDescriptorInfo descriptorInfo)
generates (Error error,
BufferDescriptor descriptor);
where BufferDescriptor is an implementation-defined blob. lockFlex
is replaced by lockYCbCr. All getters are removed.
Reference counting with retain/release is replaced by
importBuffer/freeBuffer.
Most if not all gralloc1 features are not used by the runtime yet.
There is also not too much test written for them. As such, they
tend to behave differently between implementations and cannot be
used reliably.
Bug: 36481301
Test: builds and boots on Pixel
Change-Id: I1d31105120517ea2c128c7a19297acf3bfd312bb
Introduce IAllocatorClient to manage resources owned by a client (e.g., SF
or VTS). This makes sure there is no resource leak when SF or VTS
crashes.
This also fixes two unrelated bugs
- sizeof(Buffer) != sizeof(void*) on 32-bit impl.
- layerCount was not set to 1 in tests
Test: builds and boots
Change-Id: I67f5cdd64b97fb3ce1b931099c25f59cc8517f21
Remove duplicated types from allocator@2.0 and composer@2.1. Those types
are now in common@1.0.
Bug: 32238126
Test: builds and boots
Change-Id: Ibdb907e47969f5a5a98a14a2e2b77a9c5880beff
It differs from gralloc1.h in that
- buffer descriptors are created from a struct, BufferDescriptorInfo, to
reduce round trips
- testAllocate is a function of its own
- buffer allocation and export are two different steps
- reference counting and buffer mapping are moved to gralloc-mapper
- BAD_HANDLE is renamed to BAD_BUFFER
- GRALLOC1_CONSUMER_USAGE_FOREIGN_BUFFERS is removed
- CPU_{READ,WRITE}_OFTEN no longer implies CPU_{READ,WRITE}
Test: make android.hardware.graphics.allocator@2.0
Change-Id: Ibe9367d5b1701c0e1009da829f27fed0f7d98828
